scholarly journals An Adaptive Lossly Quantization Technique for Key Extraction Applied in Vehicular Communication

Author(s):  
Ibraheem Abdelazeem Ibraheem Ali ◽  
Zhang Weibin ◽  
Zhenping Zeng ◽  
Abdeldime mohamed saleh

Abstract Security in Vehicular Ad Hoc Network (VANET) is one of the major challenging topics and the secure key interchange between two legitimate vehicles is an important issue. The multi-environment of VANET has been exploited to extract the secret key and employed security services in VANET. However, it offered more excellence randomness owed to fading, noise multi-path, and velocity difference. Some of the factors like Bit-rate, complication and memory requests are reduced by using a process known as quantization. This paper proposes a new quantization method to extract the secret key for vehicular communications that uses a lossy quantizer in combination with information reconciliation and privacy amplification. Our work focuses on the quantization phase for the secret generation procedure. The comprehensive simulations display the propose method increases the zone and number of the quantization levels to utilize the maximum number of measurements to reduce reasonably the wasted measurements.

2008 ◽  
Vol 50 (4) ◽  
Author(s):  
Felix Schmidt-Eisenlohr ◽  
Moritz Killat

SummaryA robust exchange of messages between vehicles via radio communication represents a key problem of vehicular ad hoc network (VANET) research. Environmental influences and the multitude of communicating nodes result in challenging communication conditions that have to be taken into account when assessing the potential benefit of VANETs for traffic safety and efficiency applications. In this paper we discuss an appropriate modeling of three influencing factors on the communication behavior to establish a basis for credible simulation results. In detail, we analyze the effects of fast-fading, capturing, and cumulative noise on vehicular communications and illustrate their considerable influence on a simulation's outcome. As a second contribution, we provide an empirical model for the probability of packet reception that is based on the proposed simulation methodology. The model thus allows to determine credible simulation results without being dependent on the complexity of detailed simulations. The saved computational effort facilitates the assessment of VANETs in large-scale scenarios and the consideration of communication specifics in the design process.


Author(s):  
Danda B. Rawat ◽  
Gongjun Yan

Vehicular communication is regarded as a backbone for the development of intelligent transportation system (ITS). Recently vehicular communication has attracted researchers from both academia and industry all over the world, notably, in the United States of America, Japan and European Union. The rapid advances in wireless technologies provide opportunities to utilize them in vehicular communication in advanced road safety applications. The most important feature of vehicular communication is to improve the road traffic safety, efficiency, comfort and quality of everyday road travel. Networking in particular and communication in general are important rudiments in the development of ITS. Generally, in vehicular communication, the information exchange occurs among vehicles not only in an ad-hoc based vehicle-to-vehicle networking but also in a vehicle-to-infrastructure with possible intermediate infrastructure-to-infrastructure networking. Therefore, the infrastructure plays major role in order to realize the full potential of vehicular communications. This chapter provides an in-depth survey of the infrastructures and technologies that are recently proposed as part of future ITS developments as well as tested for vehicular communications in mobile environment. Specifically, we provide an in-depth analysis of wireless technology-applications such as ad-hoc networking and wireless local area network (WLAN), dedicated short-range communication (DSRC), cellular technology and NOTICE Architecture, and compare their characteristics in terms of their abilities to support vehicular communications for development of ITS.


2019 ◽  
Vol 16 (2) ◽  
pp. 478-483
Author(s):  
Vijay Kumar Tripathi ◽  
S. Venkateswari

VANET (Vehicular Ad Hoc Network) used in vehicular communication which is trending are of current research and it is the future of vehicles industry. Many companies are investing lots of money to make their vehicles smart and effective so that need of driver can be reduced or omitted as well as journey should be safe and secure. Recently, Google tested its driverless car and the test was successful. Vehicular communication is becoming intelligent and efficient day by day. In this paper we are proposing a realistic approach to use VANET as an additional cellular tower by using Open BTS to reduce RSU (Road Side Units) and cellular towers. This will result reducing cost of installing more cell tower and increase communication speed along with reduction in harmful gasses which spreads in atmosphere due to use of diesel Generators which provide electricity to Cell Towers. VANET's OBU (On Board Unit) will work as Medium Range Cellular Tower (MRCT) to facilitate mobile phone and other subscribers in range of 1 to 2 Kilometer.


2021 ◽  
Vol 11 (1) ◽  
pp. 423-436
Author(s):  
Sourav Kumar Bhoi ◽  
Sanjaya Kumar Panda ◽  
Chittaranjan Mallick ◽  
Kalyan Kumar Jena

Abstract Vehicular communication is the communication between the vehicles to provide intelligent transportation systems (ITSs) services to the end users. It is the most advance and emerging wireless technology in ad hoc network. On the other hand, construction of roads has a great impact in forwarding the data to the destination. As vehicles are moving with high speeds, the architecture of roads can change the performance of routing and data forwarding in the vehicular ad hoc network (VANET). If the construction of the roads in a city area is planned with intelligent junctions, flyovers, multilane, etc., then the performance of the system increases. In this paper, we have analyzed the impact of road elements like intersections, flyovers, multilane, buildings, hills, etc., on VANET routing and find solutions for the problems related to the performance of the system. We also simulate the impact of these elements in VANET routing and analyzed the performance using OMNeT++ network simulator and SUMO traffic simulator. The performance is studied by comparing standard GSR and GPSR position-based routing protocols.


Electronics ◽  
2021 ◽  
Vol 10 (13) ◽  
pp. 1584
Author(s):  
Sonia Alice George ◽  
Steffie Maria Stephen ◽  
Arunita Jaekel

A vehicular ad hoc network (VANET) consists of vehicles, roadside units, and other infrastructures that communicate with each other with the goal of improving road safety, reducing accidents, and alleviating traffic congestion. For safe and secure operation of critical applications in VANET, it is essential to ensure that only authenticated vehicles can participate in the network. Another important requirement for VANET communication is that the privacy of vehicles and their users must be protected. Privacy can be improved by using pseudonyms instead of actual vehicle identities during communication. However, it is also necessary to ensure that these pseudonyms can be linked to the real vehicle identities if needed, in order to maintain accountability. In this paper, we propose a new blockchain-based decentralized pseudonym management scheme for VANET. This allows the vehicles to maintain conditional anonymity in the network. The blockchain is used to maintain a record of each vehicle and all of its pseudo-IDs. The information in the blockchain can only be accessed by authorized entities and is not available to all vehicles. The proposed distributed framework maintains an immutable record of the vehicle data, which is not vulnerable to a single point of failure. We compared the performance of the proposed approach with a traditional PKI scheme and shown that it significantly reduces the authentication delay.


Author(s):  
Sudesh Rani ◽  
Trilok C. Aseri

Background and Objective: Vehicular Ad hoc Network (VANET) now-a-days is popular research area due to numerous challenges such as congestion control, network management, and security issues. Methods: VANET is a subtype of Mobile Ad hoc Network (MANET), therefore, allows a vehicle to exchange information with neighboring vehicles and with roadside infrastructure units. High mobility of vehicles results to frequent link breakages. The existing VANET routing protocols follow a trivial link repair mechanism. Therefore, there is a need to compute stable and reliable routes for vehicular communication as well as frequently repair the broken links. Ad hoc On-demand Distance Vector (AODV) routing protocol is a reactive routing protocol which is suitable for very dynamic environment such as VANET. In this paper, an improved Randomized Link Repair based AODV (RLRAODV) routing protocol is proposed which uses the multiple route reply packets for data transmission through alternate paths during link failure. The proposed methodology also reduces the network congestion overhead generated due to broadcasting of route request packets. Results and Conclusion: The simulation analysis shows that RLR-AODV gives better performance with respect to performance parameters such as average end-to-end delay, average packet delivery ratio, and average packet loss ratio as compared to AODV and AOMDV.


Sensors ◽  
2019 ◽  
Vol 19 (3) ◽  
pp. 482 ◽  
Author(s):  
Lianhai Liu ◽  
Yujue Wang ◽  
Jingwei Zhang ◽  
Qing Yang

A vehicular ad hoc network (VANET) is a special mobile ad hoc network that provides vehicle collaborative security applications using intervehicle communication technology. The method enables vehicles to exchange information (e.g., emergency brake). In VANET, there are many vehicle platoon driving scenes, where vehicles with identical attributes (location, organization, etc.) are organized as a group. However, this organization causes the issue of security threats (message confidentiality, identity privacy, etc.) because of an unsafe wireless communication channel. To protect the security and privacy of group communication, it is necessary to design an effective group key agreement scheme. By negotiating a dynamic session secret key using a fixed roadside unit (RSU), which has stronger computational ability than the on-board unit (OBU) equipped on the vehicle, the designed scheme can help to provide more stable communication performance and speed up the encryption and decryption processes. To effectively implement the anonymous authentication mechanism and authentication efficiency, we use a batch authentication scheme and a shared secret key mechanism among the vehicles, RSUs and trusted authority (TA). We design an efficient group secret key agreement scheme, which satisfies the above communication and security requirements, protects the privacy of vehicles, and traces the real identity of the vehicle at a time when it is necessary. Computational analysis shows that the proposed scheme is secure and more efficient than existing schemes.


Author(s):  
R. Shiddharthy Et.al

Vehicular Ad hoc Network (VANET) is one of the subset of Mobile Ad hoc Network (MANET) and it is a self-organised system with a group of vehicles, which are capable of short-range communication using On Board Unit (OBU). This unit is comprised with the vehicles that are possible to communicate with the nearby vehicles. VANETs rely on heavy broadcast transmission due to sharing data (messages) between the nearby vehicles about the traffic, collision and so on. This redundant information spoils the nature of VANET that affects the inter-vehicular communication, rebroadcasting and information on collision. This message transmission increases largely as the number of vehicles increases. This problem is typically named as broadcast storm and it is relatively reduced through the proposed Selective Reliable Communication (SRC) Protocol.  Through a reliable communication, packets are retransmitted to reduce a number of transmission in the network within the acceptable level of QoS. The proposed SRC protocol automatically detect the vehicle clusters as “Zone of Interest”. Generally, the proposed protocol forwards the packets to the cluster-heads and the cluster-head forwards the packets to the cluster-members. The proposed protocol outperforms than the existing protocols in terms of Throughput, Packet Delivery Ratio (PDR) and Average delay.


2012 ◽  
pp. 2089-2107
Author(s):  
Danda B. Rawat ◽  
Gongjun Yan

Vehicular communication is regarded as a backbone for the development of intelligent transportation system (ITS). Recently vehicular communication has attracted researchers from both academia and industry all over the world, notably, in the United States of America, Japan and European Union. The rapid advances in wireless technologies provide opportunities to utilize them in vehicular communication in advanced road safety applications. The most important feature of vehicular communication is to improve the road traffic safety, efficiency, comfort and quality of everyday road travel. Networking in particular and communication in general are important rudiments in the development of ITS. Generally, in vehicular communication, the information exchange occurs among vehicles not only in an ad-hoc based vehicle-to-vehicle networking but also in a vehicle-to-infrastructure with possible intermediate infrastructure-to-infrastructure networking. Therefore, the infrastructure plays major role in order to realize the full potential of vehicular communications. This chapter provides an in-depth survey of the infrastructures and technologies that are recently proposed as part of future ITS developments as well as tested for vehicular communications in mobile environment. Specifically, we provide an in-depth analysis of wireless technology-applications such as ad-hoc networking and wireless local area network (WLAN), dedicated short-range communication (DSRC), cellular technology and NOTICE Architecture, and compare their characteristics in terms of their abilities to support vehicular communications for development of ITS.


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